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How nature makes its biominerals — things like teeth, bone and seashells — is a playbook scientists have long been trying to read.Among the most intriguing biominerals is nacre, or mother-of-pearl — t...
Polar stratospheric clouds (PSCs) of type 1a or 1a-enh containing high number densities of nitric acid trihydrate (NAT) particles, can act as mother clouds for extremely large NAT particles, termed NA...
Galileo noted in the 16th century that the period of oscillation of a pendulum is almost independent of the amplitude. However, such a pendulum is damped by air friction. The latter may be viewed as r...
Cytomixis was recorded during microsporogenesis in broad bean (Vicia faba L.), a member of the family Fabaceae. It is an important pulse crop used as vegetable, silage, forage and stock feed. The phen...

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